# -*- coding: utf-8 -*-
#
# This file is part of PyGaze - the open-source toolbox for eye tracking
#
#    PyGaze is a Python module for easily creating gaze contingent experiments
#    or other software (as well as non-gaze contingent experiments/software)
#    Copyright (C) 2012-2013  Edwin S. Dalmaijer
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>

from pygaze import settings
import pygaze
from pygaze._misc.misc import rgb2psychorgb
from pygaze.libtime import clock
from pygaze._display.basedisplay import BaseDisplay

from psychopy.visual import Window

# we try importing the copy_docstr function, but as we do not really need it
# for a proper functioning of the code, we simply ignore it when it fails to
# be imported correctly
try:
    from pygaze._misc.misc import copy_docstr
except:
    pass


class PsychoPyDisplay(BaseDisplay):

    # See _display.basedisplay.BaseDisplay for documentation

    def __init__(self, dispsize=settings.DISPSIZE, fgc=settings.FGC,
        bgc=settings.BGC, screennr=settings.SCREENNR, monitor = None, screen=None, **args):

        # See _display.basedisplay.BaseDisplay for documentation

        # try to import copy docstring (but ignore it if it fails, as we do
        # not need it for actual functioning of the code)
        try:
            copy_docstr(BaseDisplay, PsychoPyDisplay)
        except:
            # we're not even going to show a warning, since the copied
            # docstring is useful for code editors; these load the docs
            # in a non-verbose manner, so warning messages would be lost
            pass

        self.dispsize = dispsize
        self.fgc = fgc
        self.bgc = bgc
        self.screennr = screennr
        self.mousevis = False
        self.monitor = monitor

        # create window
        pygaze.expdisplay = Window(size=self.dispsize, pos=None,
            color=rgb2psychorgb(self.bgc), colorSpace="rgb",
            fullscr=settings.FULLSCREEN, monitor=self.monitor,
            screen=self.screennr, units="pix")
        # set mouse visibility
        pygaze.expdisplay.setMouseVisible(self.mousevis)
        # get screen in window
        if screen:
            for s in screen.screen:
                s.draw()

    def show(self):

        # See _display.basedisplay.BaseDisplay for documentation

        pygaze.expdisplay.flip()
        return clock.get_time()

    def show_part(self, rect, screen=None):

        # See _display.basedisplay.BaseDisplay for documentation

        self.fill(screen)
        self.show()
        print("WARNING! screen.Display.show_part not available for PsychoPy display type; fill() and show() are used instead")

        return clock.get_time()


    def fill(self, screen=None):

        # See _display.basedisplay.BaseDisplay for documentation

        pygaze.expdisplay.clearBuffer()
        if screen != None:
            for s in screen.screen:
                s.draw()

    def close(self):

        # See _display.basedisplay.BaseDisplay for documentation

        pygaze.expdisplay.close()

    def make_screenshot(self, filename="screenshot.png"):

        # See _display.basedisplay.BaseDisplay for documentation

        pygaze.expdisplay.getMovieFrame(buffer="front")
        pygaze.expdisplay.saveMovieFrames(filename)
